221112000217 has 2 divisors, whose sum is σ = 221112000218. Its totient is φ = 221112000216.

The previous prime is 221112000211. The next prime is 221112000227. The reversal of 221112000217 is 712000211122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221110610176 + 1390041 = 470224^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 221112000217 - 2²⁷ = 220977782489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221112000194 and 221112000203.

It is not a weakly prime, because it can be changed into another prime (221112000211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556000108 + 110556000109.

It is an arithmetic number, because the mean of its divisors is an integer number (110556000109).

Almost surely, 2^221112000217 is an apocalyptic number.

It is an amenable number.

221112000217 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112000217 is an equidigital number, since it uses as much as digits as its factorization.

221112000217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 221112000217 its reverse (712000211122), we get a palindrome (933112211339).

The spelling of 221112000217 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred seventeen", and thus it is an aban number.